<script setup>
import {getCategoryFilterAPI,getSubCategoryAPI} from '@/api/category.js'
import {onMounted, ref, watch} from 'vue'
import {useRoute} from 'vue-router'
import GoodsItem from '@/views/Home/components/GoodsItem.vue'

//获取面包屑导航数据
const route=useRoute()
const categoryData=ref({})
const getCategoryData=async ()=>{
    let result=await getCategoryFilterAPI(route.params.id);
    categoryData.value=result.result
}
onMounted(()=>{
    getCategoryData();
})


const goodList=ref([])
const reqData=ref({
     categoryId: route.params.id ,
     page: 1,
     pageSize: 20,
     sortField: 'publishTime'
})

const disabled=ref(false)
const getGoodList=async ()=>{
    let result=await getSubCategoryAPI(reqData.value)
    goodList.value=result.result.items
}
// 提供一个 getter 函数
watch(
  () => reqData.value.sortField,
  (newValue) => {
    reqData.value.page=1
    getGoodList()
  }
)

onMounted(()=>{
    getGoodList();
})

//加载更多
const load=async ()=>{
  reqData.value.page++
  const res = await getSubCategoryAPI(reqData.value)
  //console.log(goodList.value.items)
  goodList.value = [...goodList.value, ...res.result.items]
  if(res.result.items==[]){
    disabled.value=true
  }
}
</script>

<template>
  <div class="container ">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item :to="{ path: `/category/${categoryData.parentId}` }">{{categoryData.parentName}}
        </el-breadcrumb-item>
        <el-breadcrumb-item>{{categoryData.name}}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="sub-container">
      <el-tabs v-model="reqData.sortField">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>
      <div v-infinite-scroll="load" class="body" :infinite-scroll-disabled="disabled"> 
         <!-- 商品列表-->
         <GoodsItem v-for="goods in goodList" :good="goods" :key="goods.id" />
      </div>
    </div>
  </div>

</template>



<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }


}
</style>